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STAAR Review 4
Test Description: STAAR reporting category 4
Instructions: Answer all questions to get your test result.
1) Which of the following investigations studies how an organism in an aquatic ecosystem depends on an abiotic factor?
A
B) A study of fish swimming in water
B
A) A study of fish eating algae
C
D) A study of fish seeking shelter behind a plant
D
C) A study of fish mating with another fish
2) Chloroplasts are oval disks containing green chlorophyll in plant cells. Animal cells lack chloroplasts because they -
A
c) use mitochondria for photosynthesis
B
d) do not have cell walls
C
a) do not perform photosynthesis
D
b) have cilia for movement
3) Whether or not an organism reproduces sexually or asexually, the offspring resulting from reproduction has traits that depend directly on its parent’s or parents’ –
A
a) genetic material.
B
c) habitat location.
C
d) migration patterns.
D
b) physical appearance.
4) The ecosystem with the greatest sustainability will be the one that has the –
A
d) fastest growing season for plants.
B
a) greatest variety of different organisms
C
b) highest annual precipitation.
D
c) lowest population of harmful insects.
5) The hereditary information in animal and plant cells is located on the chromosomes, which the cells store in the –
A
c) cytoplasm
B
b) nucleus
C
a) vacuoles
D
d) ribosomes
6) Gina wrote a description of an organism she had observed under a microscope. The organism has 1 cell, a whip-like tail, and a nucleus and organelles. Why is this organism classified as a eukaryote?
A
a) Because it is a single cell
B
b) Because it can move by using its flagellum
C
d) Because it contains cytoplasm that is surrounded by a cell wall
D
c) Because it contains organelles such as a nucleus
7) Which of the following statements supports the idea from the cell theory that cells extract energy from food to sustain life?
A
a) Yeast are living organisms made up of one cell.
B
b) A paramecium breaks down organic matter to live.
C
d) An E. coli divides in half, forming to daughter cells.
D
c) Unicellular bacteria represent the most basic unit of life.
8) Which of the following is part of the theory of natural selection?
A
A) Individuals that acquire characteristics will pass those characteristics on to their offspring.
B
D) Individuals that have favorable traits are more likely to survive and reproduce.
C
B) Most offspring of a species will survive to reproduce.
D
C) Individuals within the the same population have identical traits.
9) A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, for which trait should the farmer select?
A
b) resistance to pesticides
B
c)deeper roots
C
d) more cobs on plant
D
a) taller stems
10) If an offspring is produced through sexual reproduction, the offspring’s genetic material is always –
A
a) a copy of the genetic material of one parent.
B
b) identical to the genetic material of its siblings.
C
d) a blend of the genetic material of its parents.
D
c) completely unrelated to that of its parents.
11) The food chain for an ocean ecosystem is shown: . Ocean plants - plant eating fish - barracuda-shark Which of the following will most likely happen if overfishing eliminates the population of plant-eating fishes?
A
C. The shark population will increase.
B
B. The barracudas will eat the plants.
C
D. The plant population will decrease in size.
D
A. The barracudas will need to move to another area or they will die because their food source will decrease.
12) Females of a certain species of wasp lay their eggs inside the bodies of tarantula spiders. When the eggs hatch, baby wasps kill and eat the tarantula. What type of interaction is this, and why?
A
B. competition, because the baby wasps must compete to get food from from the tarantula's body
B
D. predator-prey, because the female wasp feeds on the tarantula
C
A. symbiosis, because the tarantula feeds the baby wasps
D
C. parasite-host, because the female wasp benefits at the expense of the tarantula
13) Which of the following kinds of organisms has the greatest biomass in a food chain?
A
B. Carnivores
B
C. Herbivores
C
A. Producers
D
D. Detritivores
14) Algae called zooxanthallae live inside the cells of a coral under the sea. The coral provides carbon dioxide for the algae which in turn produce oxygen for the coral to live. What type of interaction is this?
A
B. Mutualism
B
A. Competition
C
C. Commensalism
D
D. predator-prey
15) Which level in a food pyramid is the most fragile or most susceptible to extinction?
A
A. Producers
B
B. Prey
C
D. top predators
D
C. Detritivores
16) w
A
s
B
s
17) x
A
s
B
s
18) w
A
s
B
s
19) x
A
x
B
x
20) w
A
x
*select an answer for all questions
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